Lewis wilson



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LEWIS WILS N, 0F OVID, NEW YORK.

Letters Patent No. 73,422, dated January 14, 1868,

IMPROVED PIPE-COUPLING.

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TO ALL WHOM IT MAY CONCERN:

-Be it known that I, LEWIS WILSON, of Ovid, in the county of Seneca, andState of. New York, have invented a new and improved Steam, Gas, andWater-Pipe Joint ,and IV do hereby declare that the following is a full,clear, and exact description thereof, reference being hud tothcaccompanying drawings, making a part of this specication, in whichiFigure 1 is a dinnietrical section through the ends of two sections ofesteem, gas, or water-pipe, connected .together by my improvedjoint-ring.

Figure 2 is an end view of one section of pipe, and one ot'thejoint-rings lying in place.

Similar letters of reference indicate corresponding parts in the tivofigures.

This invention relates to -a new ond useful improvement in steam, gas,and Water-pipe connections or joints,

whereby perfectly tightjoints con be made between the, ends of sectionsci' pipe with very little expense and labor, and whenimadc, the jointswill be kept tight without further attention, as long ns the pipesthemselves remain serviceable. v

The nature of' my invention consists in a metallic ring, having asectionnl forni resembling n ilattened hollow sphere, tted to seats, ofa form corresponding. to its respective surfaces, srich seats beingformed in the ends of the pieces of pipe which are to bejoned together,my invention being such that the joint may be formed andnracle tightwhether the pieces ot' pipe are placed in o. straight line with onecnothor, or are placed so as to form an angle with each other.

To enable others` skilled in the nrt to understand my invention, I willdescribe itsconstruction and operation.

l In the accompanying drawings, A A represent 'two sections of pipe,which are provided with flanges, BB, on their ends, through which boltsa a are passed, for securing the sections together. The pipes may bemade of wrought or Vcest metal, in the usual manner of constructingthem. By ineens of a tool having a rounded convex cutting-point, concavedepressions, c c, are formed in the ends of the pipes, which depressionsare adapted for receiving and fitting the corresponding convex ,surfacesof a ring, 6, through which is a hole equal in diameter to the bore ofthe pipe, as shown in iig. ,1. The ring b may be made of any suitablemetal, and in order to here it lit perfectly into its recesses, e e, inthe pipes, this ring should be properly ground into said recesses. Byhaving the ring constructed with double convex surfaces, rounded asshown, :1- perfectly tight joint may be mede at the ends of two pipes,whether such pipes beheld in a straight line or not. By having thedouble convex pn-ckingrings made ns stated, they can be readily appliedto pipes which may have been in use, by making the depressions c in theends of such pipes, as above described.

I am aware that pipes have been connected together by means of what aredenominated ball-joints, wherein half balls formed on the ends ofsections of pipes were fitted into corresponding recesses formed in theends of other sections'o'' pipe. I do not, thereforeday claim to suchmode of making tightjoints.

I also am aware that a rubber packing-ring of' a form, in section,corresponding to a wedge or the letter V, has been devised, such ringbeing made to pack the joint of the pipe by the internal pressure of thesteam or other fluid.. Liet' course, ldo not claim any such mode ofpacking joints.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

'Ihc double' convex metal .ring interposed between the ends of pipes AA, and itted into recesses c c, formed therein, and retained in positionby external pressure, applied through screw-bolts a a or theirequivalents, subst-antiolly in the manner and for the purpose described.

y LEWIS WILSON.

Witnesses:

.Lines FOSTER, Cuirs. D. Herr.

